Turara

A primitive icicle. Don't stick your tongue to it.

(Source: GlitterBerri (translation))

Door (Effect Folder)

A very odd looking model considering the art style doesn't fit with Luigi's Mansion. This particular model is located within the effect folder of all places. The model comes in two different formats; MDL (the one most commonly used by LM) and BMD.
There is a copy of the texture used on the door's frame called doorVAC_BODY_ITA4.

Unused Doors

There are three unused door objects within the game.

Heart Door

Heart Door

Heart Door being unlocked

This door is pink and features heart designs. Early footage of the game showed that this door was originally intended to lead to the Nursery, the room where the first area's boss is found. It has a unique cut scene for being unlocked, showing the heart-studded door instead of the normal door model.

Star Door

Star Door

Star Door being unlocked

A blue door featuring stars. Early footage of the game reveals that this was originally the door that led into the Twins' Room. Like the heart door above, a unique unlocking cut scene is present for this door that uses a highly detailed version of the star door rather than the model for the normal doors.

Ghost Machine/Gallery Door

The lab door seen in the Portificationizer and Gallery rooms has a dedicated cutscene model. However, it just appears to be a placeholder since lab exploration was removed earlier in the game's development.

Gallery Door

Gallery Door being unlocked

Elh

The model elh is a tall, faceless, twisting creature. According to the entries, it was compiled a month after Luigi's Mansion appeared at E3. It has six animations, including some related to water and fire. It has no textures, nor any UV maps that would support textures, meaning it either relied entirely on shaders, particles, or never reached the texturing phase. Elh has four particle effects dedicated to itself.

Early Bogmire (shadow)

Early (shadow)

Final (bfire)

The model shadow is an earlier version of Bogmire that appears to be compiled a few weeks before the other three Bogmire models were added to the game. The textures are the same, but the appearance is remarkably different. It has longer wings with skinnier flabs of ectoplasm hanging down, a defined lower lip or chin, and a visibly sorrowful and eerie expression. It also has a typical wavy ghost bottom, whereas the final Bogmire has a blob bottom.

bmario

Unused (bmario)

Used (dmario)

The file bmario is a second model of Mario, stretched to Luigi's proportions and equipped with back straps for the Poltergust 3000. The geometry of the model is simpler than Mario's final in-game model. The model has the majority of Luigi's animations.

The model's true purpose is unknown, but it may have been involved in a boss battle or a bonus feature, as indicated by the "b-" prefix in its file name. It is also possible that it could have been part of a scrapped multiplayer mode, or just a developer in-joke.

Tomato

According to the entries list, this model, named tomato, was added on May 23, possibly making it the earliest model in the list. However, this isn't the case as most models had several revisions from February to August. The tomato was likely left out because it has no other place.

This appears to be the same model that the "Chef Ghost" is holding in one of the prerelease screenshots. In game.szp, the model is replaced by the bowling ball when game.szp is loaded into RAM.

It has two animations: wait and rot. Wait is it being stationary, while rot is it rotating.

Early Poltergust (v_body)

Water Nozzle (wpwater)

The water nozzle was briefly seen in the E3 2001 presentation. It was used to showcase the fluid simulation for the water element and it was only seen in the presentation copy of the E3 prototype. It would have replaced the normal vacuum nozzle when pressing the L trigger.

Air Nozzle (wpair)

Ball

Technically, these are seen in the final game; except they are under a different model name called star.mdl. Ball has an entirely different purpose compared to Star. Ball has skewing animations, while Star is a static object. Ball also has a number of textures for diversity, whereas Star only has one texture. Ball was originally seen in the E3 2001 trailer, just bouncing around doing ghost things.

gide_lui.bin

In Iwamoto/map2/gidemap.szp, there is a very peculiar Luigi model. It holds Luigi's classic color scheme, along with looking like a creepy Matryoshka doll. It was likely a placeholder for the model of Luigi's head that appears on the Game Boy Horror's maps.

Shy Guys

While the Shy Guy Ghosts appear in a number of colors, none of them are blue or cyan. The textures for these particular colors are the last two in the model's texture list. They can also be brought into the game with AR codes, but it doesn't seem to work right.

Rats

Rat Ghosts can appear in different colors like blue, purple, and in some situations gold. However, there's also a pink colored Rat Ghost texture that goes by the name rat_3 that's completely unused.

Henry and Orville

Henry and Orville have different colored shirts, but for whatever reason, the data is duplicated. Henry has a blue shirt, but has additional data to use Orville's red shirt texture and vice versa for Orville. This is clearly an oversight unless there were other plans for the twins. In a more elaborate explanation, only one model exists for the twins, but there is another file included within the archive that calls for another model to be duplicated with the same data.

map2.szp

Gold Table

Found in Iwamoto\map2\room_04\otuku.bin
The Mirror Room has a lack of furniture minus the drawer at the right end of the room. While there is no indication where it would have been located in the room, it may have been in the middle or a corner of the room.

(Source: Catley)

Area 2 to Courtyard Hallway Dupe Data

Found in map2\room_07\room..bin
This seems to be a very simple naming mistake. However, this is identical to the room.bin that ends up getting loaded.

(Source: Catley)

Ground Stake

The stake seen from the balcony.

Found in Iwamoto\map2\room_11\a_kui_1.bin
Originally only seen in earlier screenshots and can still be seen in the game from the balcony view. Since there's a fair amount of speculation around Spooky's original role, there's no real indication if Spooky would be chained up.

(Source: Catley)

Billiards Room Loveseat

Found in Iwamoto\map2\room_12\isu12_1.bin
It seems that the Billiards Room was going to be a bit more expansive and have more furniture. It fits in well with the stool seen at one of the corner tables.

(Source: Catley)

Phonograph

Found in Iwamoto\map2\room_13\chiku.bin
Not a whole lot can be said for this particular model. It might have worked in conjunction with the projector or as a second sort of activation method to make the ghosts appear.

(Source: Catley)

Unused Area 3 Upper Hallway

Found in Iwamoto\map2\room_15\room.bin
At first glance, this looks the same as the final Area 3 upper hallway. The two biggest differences are the rug at the door and have triangle accents on the walls, likely indicating where doors would go. This seems to be a very early version, most likely a similar scene as seen in the E3 trailer. Also, it seems a bit odd this would be seen so early in the order the levels are laid out.

(Source: Catley)

Chauncey's Mobile

Found in Iwamoto\map2\room_24\bat.bin
While it was never seen in E3 2001 gameplay or any trailers, it is possible this was an earlier addition judging by the style of the mobile. It would most likely function the same as the mobile in the Twins' room.

(Source: Catley)

Guest Room Lamp

Found in Iwamoto\map2\room_28\lamp1.bin
The guest room does have a small table, but a clown doll sits on top of it. This is duplicate data seeing as it is seen in other rooms such as the Parlor.

(Source: Catley)

Original Vase

Found in Iwamoto\map2\room_29\tubo30_1.bin
Seen in multiple areas in E3 footage, Area 1 used to also have the same small tables seen throughout the mansion. The trap doors replaced the original tables, but, they seemed to forget to remove the original vase model in the process. It can be seen in the kitchen on a shelf. The model was later repurposed in Super Smash Bros. Brawl's stage.

(Source: Catley)

Study Ladder

Found in Iwamoto\map2\room_34\hasi34_1.bin
A ladder which would have been very fitting for the theme of the room. Quite a shame it goes unused.

(Source: Catley)

Earlier Medicine Cabinet

Found in Iwamoto\map2\room_42\tana42.bin
While this particular version of the Washroom does not have a medicine cabinet unlike Area 2, it does have a medicine cabinet, which is a much simpler model with no animation for it to open.

(Source: Catley)

Room01A.bin

Found in Iwamoto\map2\room01A.bin
This map does not fit anywhere in the normal mansion aside from the test level. It reuses texture from the foyer. This is supposed to be a variation room for the Secret Room. There's a rug to the right, indicating a door originally went in place.

(Source: Catley (Discovery), Arookas (Demolisher BIN Viewer)])

Duplicate Data

Framed Picture

Found in Iwamoto\map2\room_03\pic10.bin
Technically this isn't unused, but it could just be leftover duplicate data since there's no fitting place for it in Clairvoya's room. It is also seen in rooms such as the Parlor.

(Source: Catley)

Washroom Duplicate Picture Data

Found in Iwamoto\map2\room_17\pic10.bin
Same as Clairvoya's room. Must have either been planned or it's a simple leftover for a different room.

(Source: Catley)

Duplicate Breaker Data

Found in Iwamoto\map2\room_65\break.bin
This isn't unused, but it's most likely just a leftover import.